Home / 3,785.90-5,224.37-2,107.17

Finding the Fourth Proportional to 3,785.90, 5,224.37 and 2,107.17

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Solution

The fourth proportional to 3,785.90, 5,224.37 and 2,107.17 is: 2,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.90 : 5,224.37 = 2,107.17 : x
  2. Step 2: Convert to fraction form
    3,785.90/5,224.37 = 2,107.17/x
  3. Step 3: Cross multiply
    3,785.90x = 5,224.37 × 2,107.17
  4. Step 4: Simplify right side
    3,785.90x = 11,008,625.20
  5. Step 5: Solve for x
    x = 11,008,625.20/3,785.90
  6. Step 6: Final answer
    x = 2,907.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.